Puppet-valve.



BEST AvAzLABLE LOP Mimi 1 inn-1.- 7' PATENTED SEPT. 6, 1904. n, H.HOLZWARTH.

PUPPET VALVE.

APPLICATION FILED PEB.11,1904.

N0 MODEL.

* Witnesses:

W62 Inventor M.$.w M/. 3

Attorney ,lilST AVAlLABLE Cglmtedseptember 4.

HANS I-IOLZW ARTH, OF HAMILTON,

OHIO, ASSIGNOR TO THE HOOVEN,

O'WENS, RENITSOHLER COMPANY, OF HAMILTON, OHIO.

PUPFET-VALVE.

SPECIFICATION forming part of Letters Patent No. 769,382, datedSeptember 6, 1904.

Application filed February 11, 1904. Serial No. 193,043. (No model.)

To rtZZ whmn it may concern.-

Be it known that I, HANS HOLZWARTH, a citizen of Germany, residing inHamilton, Butler county, Ohio, (post-office address, Hamilton, Ohio,)have invented certain new and useful Improvements in Puppet-Valves, ofwhich the following is a specification.

This invention pertaining to improvements in the construction ofpuppet-valves, aiming to effect their perfect balance, will be readilyunderstood from the following description, taken in connection with theaccompanying drawing, which is a vertical longitudinal section of thepuppet-valve exemplifying my in vention.

In the drawing, 1 indicates the valve-body; 2, its inlet; 3, its outlet,it being understood,

however, that the outlet and inlet are interchangeable; 1, theneck-opening into the body; 5, the bonnet removably closing theneck-opening; 6, one of the valve-seats; 7, the other Valve-seat; 8, thevalve-stem; 9, an enlargement of the stem where it passes through theSeats; 10, a downwardly-presenting shoulder on the enlarged portion ofthe stem near the. top of the valve proper; 11, the lower member of thevalve disposed separably upon the enlargement of the stem and seatingupon the lower valve-seat; 12, the upper member of the valve engagingthe upper valve-seat, the two Valve members abutting upon each other;13,

.a nut on the stem below the valve members and serving to hold the valvemembers together upon the stem; 14, the joint at which the two valvemembers abut upon each other; 15, a gasket between the upper valvemember and the shoulder 15 on the valve-stem, and 16 a gasket (shown asof wire type) disposed between the lower valve member and the ste1nnut.

It is to be observed that the seating-lips of the two valve members areof identical equal size, the result being that the valve is perfectlybalanced. A double puppet-valve in which the two valve members are ofthe same size cannot be withdrawn endwise through the valve-seats, andseats made removable for the purpose of permitting the removal of thevalve are very undesirable by reason of the fact that in removing andreplacing them there is quite apt to be a disturbance of that accuracyof distance from face to face essential to a proper seating of the twovalve members. In my present construction the valve-seats if inserted asshown in the drawing are made so for the purpose of forming them of somemetal more desirable than that of the valve-bod y and not for purposesof removal in removing the valve. By removing the bonnet and lifting thevalve and removing nut 13 the stem may be withdrawn, after which theupper valve member may be withdrawn through the neckopening and thelower valve member removed through side opening 2. The parts arereplaced by a reversed operation, and as joint 14 is an accurately-mademetal-to-metal joint it follows that when the valve members are againassembled and fixed upon the stem the distance between their lips willbe precisely the same as it was before the valve was dismembered. Thegaskets at 15 and 16 insure against leakage through the valve membersalong the stem.

I claim as my invention 1. In a balanced puppet-valve, the combimovalwith respect to the valve-stem of one of the valve members, a stem, twovalve members disposed removably upon the stem and abutting directlyagainst each other and having lips of equal size engaging the seats ofthe body, and means for securing the valve members to the stem.

2. In a balanced puppet-valve, the combination, substantially as setforth, of a valve body having a pair of circular seats and having a sideopening leading from between the seats and of a size to permit thesidewisc displacement of one of the valve members, a stem having adownwardly-presenting-shoulder, an upper valve member disposed upon thestem and abutting against said shoulder and having a lip to engage oneof the seats of the body, a lower valve member disposed upon the stemand abutting upon the upper valve member and having a lip equal in sizewith that of the upper valve member, and a nut upon the stem to clampthe valve members together and to the stem.

3. In a balanced puppet-valve, the combination, substantially as setforth, of a valvebody having a pair of circular seats and having a sideopening leading from between the seats and of a size to permit thesidewise displacement of one of the valve members, a stem having adownwardly-presenting shoulder, an upper valve member disposed upon thestem and abutting against said shoulder and having a lip to engage oneof the seats of the body, a lower valve member dispose upon the stem andabutting upon the upper valve member and having a lip equal in size withthat of the upper valve member, a gasket in position to prevent leakagethrough the valve members along the stem, and a nut seer AVAILABLECQPTand abutting upon each other and having lips of equal size engaging theseats, and a nut upon the enlarged stem for clamping the valve memberstogether and to the stem.

. HANS HOLZWARTH.

W'itnesses:

ELMER R. SHI'PLEY,

SAM D. FITTON, Jr.

upon the stem to clamp the valve members

